Free St. Patrick’s Day Crochet Patterns Marvelous Mini St. Patrick’s Day Top Hat (Free Video Crochet Pattern)! Lucky “Pot o Gold” Top Hat Headband Crochet Pattern! Super-Cute St. Patrick’s Day Shamrocks! Unique Unicorn St. Patrick’s Day Applique! The Ultimate Beer Drinker’s St. Patrick’s Day Crochet Project! (FREE Tutorial) Marvelous Potted Four-Leaf Clover (Free Crochet Pattern)